メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.323025680216 43.0593318927261, 141.323693188513 43.05942352508, 141.323537194757 43.059999030298, 141.323533188309 43.0600294502297, 141.323477796844 43.0602364023037, 141.323426195079 43.0603509719277, 141.323246188584 43.0605848349993, 141.322114639989 43.0604230436529, 141.322250450855 43.0598448455919, 141.322394906118 43.0592466723491, 141.323025680216 43.0593318927261)) ^^http://www.opengis.net/ont/geosparql#wktLiteral